Apple is evaluating how to better manufacture high-mobility oxide (HMO) backplanes for future OLED panels in products beyond the new MacBook Pro with PROLED XDR Display, reports The Elec — as noted by MacRumors.
The laptop is Apple’s first Mac display to use tandem OLED technology. Both Samsung Display and LG Display are developing the HMO thin-film transistor technology for OLED panels that’s being considered by Apple as a “full-blown successor to low-temperature polycrystalline oxide, or LTPO,” The Elec claims. LTPO is the TFT backplane technology currently used in iPhone models and the OLED iPad Pro.
HMO (High-Mobility Oxide) thin-film transistor (TFT) technology is a next-generation semiconductor backplane design for advanced displays—such as OLED and micro-LED panels—that dramatically boosts electron mobility while keeping power consumption and production costs low.
Unlike LTPS—which is complex to manufacture and generally limited to smaller glass substrate sizes—HMO can be applied to large-generation glass substrates (such as Gen. 8 and larger) using standard sputtering equipment. This makes it easier and cheaper to integrate into existing production lines compared to stitching together complex multi-process tech like LTPO (Low-Temperature Polycrystalline Silicon Oxide).
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